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Briding Amplifier

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=72952
Printed Date: September 10, 2025 at 9:01 AM


Topic: Briding Amplifier

Posted By: smokinsmitty
Subject: Briding Amplifier
Date Posted: February 16, 2006 at 4:15 PM

OK my buddy wants to buy a 2 channel amp and bridge one channel so he can run 3 subs! Is this ok? Does it make it so the subs dont get the same amount of power? Just fill me in

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1 15" Memphis Mojo,
Memphis 16-mc1000D amp,
Audiopipe 4gauge mp kit, Pioneer DEH4700MP head unit.
2002 Yamaha 660R Raptor
Yamaha FZR600 crotch rocket
Sea Doo XP800
Sea Doo Spi



Replies:

Posted By: tcss
Date Posted: February 16, 2006 at 4:30 PM
Did you mean to say "bridge into one channel"? Because you cannot "bridge one channel"

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There is no such thing as free installation!




Posted By: smokinsmitty
Date Posted: February 16, 2006 at 5:58 PM
umm well i'll explain here! ok he has a 2 channel amp and he is only going to bridge left channel! Is that ok?

-------------
1 15" Memphis Mojo,
Memphis 16-mc1000D amp,
Audiopipe 4gauge mp kit, Pioneer DEH4700MP head unit.
2002 Yamaha 660R Raptor
Yamaha FZR600 crotch rocket
Sea Doo XP800
Sea Doo Spi




Posted By: j_darling2007
Date Posted: February 16, 2006 at 6:13 PM

You can't bridge one channel. Bridging is combining the power of both channels into one.  If you are saying he is going to run 2 subs on one channel and one on the other, they will get roughly the same amount of power because the channel with the 2 subs with have half the resistance of the other ( if wired in parellel), causing it to get 2 times the power to be split between 2 subs.  However, they will have a higher THD.  However, this is not a very good way to run the subs. But it will work if the amp is stable to 2 ohms on each channel.

If I were your friend, I would save up for a mono sub amp that can run safely to one ohm, wire the 3 subs in parellell to get a 1.33 ohm load (if they are SVC) and run them like that.  He will be way more satisfied with the results.



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There are 3 kinds of people in the world, those who can count and those who can't





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